Intraocular pressure measurement by three different tonometers in primary congenital glaucoma
Purpose: To determine the agreement between intraocular pressure (IOP) measurements using an automated non-contact tonometer (NCT), Goldmann applanation tonometer (GAT), and the ocular response analyzer (ORA) in subjects with primary congenital glaucoma (PCG). Methods: Twenty-nine eyes of 17 PCG pa...
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| Format: | Article |
| Language: | English |
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Knowledge E
2015-01-01
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| Series: | Journal of Ophthalmic & Vision Research |
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| Online Access: | http://www.jovr.org/article.asp?issn=2008-322X;year=2015;volume=10;issue=1;spage=43;epage=48;aulast=Zareei |
| _version_ | 1811193696397295616 |
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| author | Athar Zareei Mohammad Reza Razeghinejad Mohammad Hosein Nowroozzadeh Yadollah Mehrabi Mohammad Aghazadeh-Amiri |
| author_facet | Athar Zareei Mohammad Reza Razeghinejad Mohammad Hosein Nowroozzadeh Yadollah Mehrabi Mohammad Aghazadeh-Amiri |
| author_sort | Athar Zareei |
| collection | DOAJ |
| description | Purpose: To determine the agreement between intraocular pressure (IOP) measurements using an automated non-contact tonometer (NCT), Goldmann applanation tonometer (GAT), and the ocular response analyzer (ORA) in subjects with primary congenital glaucoma (PCG).
Methods: Twenty-nine eyes of 17 PCG patients underwent IOP measurements using NCT, GAT and ORA. Variables obtained by the ORA were corneal-compensated IOP (IOPcc), Goldmann-correlated IOP (IOPg), corneal hysteresis (CH), and corneal resistance factor (CRF). A difference more than 1.5 mmHg for IOP was considered as clinically relevant.
Results: Mean age of the patients was 12 years. Mean IOP (±standard deviation, SD) was 15.3 ± 2.8 mmHg (GAT), 15.5 ± 6.0 (NCT), 19.2 ± 7.0 (IOPg), and 21.1 ± 7.9 (IOPcc); (P = 0.001). Except for NCT vs. GAT (P = 1.0), the average IOP difference between each pair of measurements was clinically relevant. The 95% limits of agreements were − 10.2 to 10.3 mmHg (NCT vs. GAT), −7.8 to 15.3 (IOPg vs. GAT), and − 8.1 to 19.0 (IOPcc vs. GAT). The differences in IOP measurements increased significantly with higher average IOP values (r = 0.715, P = 0.001, for NCT vs. GAT; r = 0.802, P < 0.001, for IOPg vs. GAT; and r = 0.806, P < 0.001, for IOPcc vs. GAT). CH showed a significant association with differences in IOP measurements only for IOPcc vs. GAT (r = 0.830, P < 0.001).
Conclusion: Mean IOP obtained by NCT was not significantly different from that of GAT, but ORA measured IOPs were significantly higher than both other devices. |
| first_indexed | 2024-04-12T00:13:57Z |
| format | Article |
| id | doaj.art-8b7ec34060f54191b0eee4fd6f967c14 |
| institution | Directory Open Access Journal |
| issn | 2008-322X |
| language | English |
| last_indexed | 2024-04-12T00:13:57Z |
| publishDate | 2015-01-01 |
| publisher | Knowledge E |
| record_format | Article |
| series | Journal of Ophthalmic & Vision Research |
| spelling | doaj.art-8b7ec34060f54191b0eee4fd6f967c142022-12-22T03:55:54ZengKnowledge EJournal of Ophthalmic & Vision Research2008-322X2015-01-01101434810.4103/2008-322X.156105Intraocular pressure measurement by three different tonometers in primary congenital glaucomaAthar ZareeiMohammad Reza RazeghinejadMohammad Hosein NowroozzadehYadollah MehrabiMohammad Aghazadeh-AmiriPurpose: To determine the agreement between intraocular pressure (IOP) measurements using an automated non-contact tonometer (NCT), Goldmann applanation tonometer (GAT), and the ocular response analyzer (ORA) in subjects with primary congenital glaucoma (PCG). Methods: Twenty-nine eyes of 17 PCG patients underwent IOP measurements using NCT, GAT and ORA. Variables obtained by the ORA were corneal-compensated IOP (IOPcc), Goldmann-correlated IOP (IOPg), corneal hysteresis (CH), and corneal resistance factor (CRF). A difference more than 1.5 mmHg for IOP was considered as clinically relevant. Results: Mean age of the patients was 12 years. Mean IOP (±standard deviation, SD) was 15.3 ± 2.8 mmHg (GAT), 15.5 ± 6.0 (NCT), 19.2 ± 7.0 (IOPg), and 21.1 ± 7.9 (IOPcc); (P = 0.001). Except for NCT vs. GAT (P = 1.0), the average IOP difference between each pair of measurements was clinically relevant. The 95% limits of agreements were − 10.2 to 10.3 mmHg (NCT vs. GAT), −7.8 to 15.3 (IOPg vs. GAT), and − 8.1 to 19.0 (IOPcc vs. GAT). The differences in IOP measurements increased significantly with higher average IOP values (r = 0.715, P = 0.001, for NCT vs. GAT; r = 0.802, P < 0.001, for IOPg vs. GAT; and r = 0.806, P < 0.001, for IOPcc vs. GAT). CH showed a significant association with differences in IOP measurements only for IOPcc vs. GAT (r = 0.830, P < 0.001). Conclusion: Mean IOP obtained by NCT was not significantly different from that of GAT, but ORA measured IOPs were significantly higher than both other devices.http://www.jovr.org/article.asp?issn=2008-322X;year=2015;volume=10;issue=1;spage=43;epage=48;aulast=ZareeiGoldmann Applanation Tonometer; Intraocular Pressure; Noncontact Tonometer; Ocular Response Analyzer; Primary Congenital Glaucoma |
| spellingShingle | Athar Zareei Mohammad Reza Razeghinejad Mohammad Hosein Nowroozzadeh Yadollah Mehrabi Mohammad Aghazadeh-Amiri Intraocular pressure measurement by three different tonometers in primary congenital glaucoma Journal of Ophthalmic & Vision Research Goldmann Applanation Tonometer; Intraocular Pressure; Noncontact Tonometer; Ocular Response Analyzer; Primary Congenital Glaucoma |
| title | Intraocular pressure measurement by three different tonometers in primary congenital glaucoma |
| title_full | Intraocular pressure measurement by three different tonometers in primary congenital glaucoma |
| title_fullStr | Intraocular pressure measurement by three different tonometers in primary congenital glaucoma |
| title_full_unstemmed | Intraocular pressure measurement by three different tonometers in primary congenital glaucoma |
| title_short | Intraocular pressure measurement by three different tonometers in primary congenital glaucoma |
| title_sort | intraocular pressure measurement by three different tonometers in primary congenital glaucoma |
| topic | Goldmann Applanation Tonometer; Intraocular Pressure; Noncontact Tonometer; Ocular Response Analyzer; Primary Congenital Glaucoma |
| url | http://www.jovr.org/article.asp?issn=2008-322X;year=2015;volume=10;issue=1;spage=43;epage=48;aulast=Zareei |
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